US3078406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-range hoist system
Assignee: Louis Allis Co
•
Filing: 1956-10-16
•
Granted: 1963-02-19
•
Expires: 1976-10-16
Abstract
No abstract record available.
Inventors
- 👤 Charles H Zweifel
- 👤 Morton S Rundel
- 👤 Robert C Van Schaack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:55
CPC Classifications
B; B66; B66C; B66C13/00; B66C13/18; B66C13/22; B66C13/23; B66C13/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A HOIST SYSTEM COMPRISING A HOIST MOTOR AND HOIST MECHANISM DRIVE-CONNECTED THERETO, SAID HOIST MECHANISM INCLUDING COMMON MEANS FOR CONNECTING AND LIFTING A LIGHT OR HEAVY PHYSICAL LOAD; MANUALLY CONTROLLED MEANS FOR ALTERING THE SPEED OF SAID HOIST MOTOR FOR LIFTING HEAVY PHYSICAL LOADS, WITHIN A PREDETERMINED SPEED RANGE; MANUALLY CONTROLLED MEANS INDEPENDENT OF SAID FIRST MANUALLY CONTROLLED MEANS FOR ALTERING THE SPEED OF SAID HOIST MOTOR FOR LIFTING LIGHT PHYSICAL LOADS, WITHIN A SPEED RANGE EXTENDING ABOVE SAID FIRST SPEED RANGE; AND MEANS RESPONSIVE TO UTILIZATION OF ONE OF SAID SPEED ALTERING MEANS FOR RENDERING IMPOTENT, THE OTHER OF SAID SPEED ALTERING MEANS.
Claim 2
Dependent Claim
104 words
A HOIST SYSTEM COMPRISING A HOIST MOTOR AND HOIST MECHANISM DRIVE-CONNECTED THERETO, SAID HOIST MECHANISM INCLUDING COMMON MEANS FOR CONNECTING AND LIFTING A LIGHT OR HEAVY PHYSICAL LOAD; MANUALLY CONTROLLED MEANS FOR ALTERING THE SPEED OF SAID HOIST MOTOR FOR LIFTING HEAVY PHYSICAL LOADS, WITHIN A PREDETERMINED SPEED RANGE; MANUALLY CONTROLLED MEANS INDEPENDENT OF SAID FIRST MANUALLY CONTROLLED MEANS FOR ALTERING THE SPEED OF SAID HOIST MOTOR FOR LIFTING LIGHT PHYSICAL LOADS, WITHIN A SPEED RANGE EXTENDING ABOVE SAID FIRST SPEED RANGE; AND MEANS RESPONSIVE TO UTILIZATION OF ONE OF SAID SPEED ALTERING MEANS FOR RENDERING IMPOTENT, THE OTHER OF SAID SPEED ALTERING MEANS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |